Help with these two questions

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

7 0

Answer:

11. -1 ≤ x

x ≥ -1, D

Because it is starting at -1, and the arrow is pointing up showing that x is greater than. BUT the circle is not hallow and is filled meaning that is is greater than, OR EQUAL TOO.

12. X < -2, A

Because it is starting at -2 and is going down showing that -2 is greater, and since the circle is hallow it just means X is less than NOT OR EQUAL TOO.

I am Lyosha [343]3 years ago

6 0

Answer:

11. = D) x is greater than or equal to -1

12. = A) x is less than -2

Step-by-step explanation:

You might be interested in

Find the length of ST In the kite.

kifflom [539]

Answer:

1.29

Step-by-step explanation:

The diagonals of a kite are perpendicular.

Angles QRT and SRT are congruent.

In right triangle STR, for angle TRS, ST is the opposite leg, and SR is the hypotenuse. The sine ratio relates the opposite leg to the hypotenuse, so we use the sine ratio to find the length of segment ST.

sin <TRS = opp/hyp

sin <TRS = ST/SR

sin 23 deg = ST/3.3

ST = 3.3 * sin 23 deg

ST = 1.29

5 0

3 years ago

The set of possible values of m is {5,7,9}. What is the set of possible values of k if 2k=m+3?

Paladinen [302]

Just plug in the values for m

so the possible values for k are
when m=5
$2k=5+3 \\ k=4$
when m=7
$2k=7+3 \\ 
k=5$
when m=9
$2k=9+3 \\ k=6$
so the possible values for k are {4,5,6}

4 0

3 years ago

What is the factored form of the polynomal? x2-12x+27

lianna [129]

Answer:

The answer is $(x-9) (x-3)$ .